Fish

Question 1

To what family does Danio rerio belong?

Answer 1

Cyprinidae

Question 2

How long after fertilization does the first cleavage occur?

Answer 2

45 minutes

Question 3

How many days post-fertilization do zebrafish hatch?

Answer 3

3-4 dpf

Question 4

How many days post-fertilization do zebrafish start to feed?

Answer 4

4-5 dpf

Question 5

What neoplastic disease is associated with the C-myc gene in zebrafish?

Answer 5

T cell acute lymphoblastic leukemia

Question 6

What neoplastic disease is associated with the AML1-ETO gene translocation?

Answer 6

Acute myelogenous leukemia

Question 7

What neoplastic disease is associated with mifta-BRAF;p53-/-?

Answer 7

Melanoma

Question 8

What is conductivity? What is the appropriate range for zebrafish?

Answer 8

Measure of total dissolved ions in the water

125-2500 uS

Question 9

What is the appropriate pH range for zebrafish? What happens if it is too high or too low?

Answer 9

7-8

Too high –> More unionized ammonia
Too low –> Nitrifying bacteria inhibited –> Ammonia accumulation

Question 10

What is water hardness and what is the appropriate range for zebrafish?

Answer 10

Amount of Ca and Mg in the water

80-200 ppm

Question 11

What bacteria convert ammonia to nitrite and nitrite and nitrate?

Answer 11

Ammonia to nitrite by Nitrosomonas spp. and nitrite and nitrate by Nitrobacter spp.

Question 12

What is the primary hematopoietic organ of zebrafish?

Answer 12

Head kidney

Question 13

What is the most common granulocyte in zebrafish?

Answer 13

Neutrophil

Question 14

What infectious agent of zebrafish causes fish tank granuloma in people?

Answer 14

Mycobacterium spp